Basic Veterinary Diagnostic Set equipped with a True Tone Multi-Voltage LED Otoscope Head with 3 metal heads compatible with Heine, also equipped with a TrueTone LED Otoscope with Polarizing Filter. Rechargeable lithium-ion ADAPT desktop handle and single-port charger with Zip case. TrueTone™ Multi-Voltage LED Otoscope Head TrueTone™ LED Otoscope with Polarizing Filter Excellent LED lighting Equipped with 3 metal heads compatible with Heine Shipping duration: 2 hours Operating time: More than 20 hours